DDoS mitigation Equinix?

[Abuse Contact <stopabuseandreport () gmail com>]

Hi,
I've heard that using Equinix has it's DDoS protection benefits like large
companies such as CloudFlare use them for DDoS mitigation, I don't get it,
how do they help with DDoS protection? You still get a 1Gbit from them or
whatever and also do you guys know around how much they'd cost?

Thanks!